webapp/reports: trim list to Serial/Model/Date/Result

Drops the filename, type, and size columns from the Blancco Reports
list - operators want bay-identification fields, not file metadata.
Filename moves to a row hover tooltip (title attribute) so it is still
recoverable for ad-hoc lookups.

Adds a Result column derived from each XML report's overall erasure
state:
  * Successful  -> green badge (all erasure entries report Successful)
  * Failed      -> red badge   (any erasure entry reports a non-Successful state)
  * other       -> grey badge with the verbatim state
  * blank/non-XML -> dash

The state roll-up lives in the blancco_reports route's per-file parse
loop next to the existing serial/model extraction.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

webapp/app.py

@@ -373,12 +373,24 @@ def blancco_reports():
             # negligible at fleet sizes).
             serial = ""
             model = ""
+            state = ""
             if ext == ".xml":
                 try:
                     data = blancco_report.parse(fpath)
                     sysinfo = (data.get("hardware") or {}).get("system") or {}
                     serial = sysinfo.get("serial", "") or ""
                     model = sysinfo.get("model", "") or ""
+                    # Overall erasure result: each erasure entry has its own
+                    # 'state' (Successful / Failed / ...). If any drive failed
+                    # the report rolls up to Failed; otherwise Successful.
+                    erasures = data.get("erasures") or []
+                    states = [(e.get("state") or "").strip() for e in erasures if e.get("state")]
+                    if not states:
+                        state = ""
+                    elif any(s.lower() != "successful" for s in states):
+                        state = "Failed"
+                    else:
+                        state = "Successful"
                 except Exception:
                     pass
             reports.append({
@@ -388,6 +400,7 @@ def blancco_reports():
                 "type": ext.lstrip(".").upper() or "FILE",
                 "serial": serial,
                 "model": model,
+                "state": state,
             })
     return render_template(
         "reports.html",